8aa754c9be
keystore may hold sensitive information in it's memory. Don't allow anyone to ptrace keystore. Change-Id: I4e3717e482b9fd128d38ce687c03122d41678b6f
27 lines
977 B
Text
27 lines
977 B
Text
type keystore, domain;
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type keystore_exec, exec_type, file_type;
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# keystore daemon
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init_daemon_domain(keystore)
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typeattribute keystore mlstrustedsubject;
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binder_use(keystore)
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binder_service(keystore)
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allow keystore keystore_data_file:dir create_dir_perms;
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allow keystore keystore_data_file:notdevfile_class_set create_file_perms;
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allow keystore keystore_exec:file { getattr };
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allow keystore tee_device:chr_file rw_file_perms;
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allow keystore tee:unix_stream_socket connectto;
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###
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### Neverallow rules
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###
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### Protect ourself from others
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###
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neverallow { domain -keystore } keystore_data_file:dir ~{ open create read getattr setattr search relabelto };
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neverallow { domain -keystore } keystore_data_file:notdevfile_class_set ~{ relabelto getattr };
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neverallow { domain -keystore -init -kernel -recovery } keystore_data_file:dir *;
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neverallow { domain -keystore -init -kernel -recovery } keystore_data_file:notdevfile_class_set *;
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neverallow domain keystore:process ptrace;
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